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Nelenite

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About NeleniteHide

Formula:
(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]
Colour:
Light to medium Brown
Lustre:
Vitreous, Resinous
Hardness:
5
Specific Gravity:
3.46
Crystal System:
Monoclinic
Name:
Named in 1984 by Pete J. Dunn and Donald R. Peacor in honor of Joseph A. Nelen (28 Aug 1923 - 7 Jun 2005), Chemist at the Smithsonian Institution, Washington, D.C., USA.
Isostructural with:
This page provides mineralogical data about Nelenite.


Classification of NeleniteHide

Approved
9.EE.15

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
72.4.1b.3

72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
4 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-, 6-, and 12-membered rings
17.7.13

17 : Silicates Containing other Anions
7 : Silicates with vanadate, arsenate or antimonate

Physical Properties of NeleniteHide

Vitreous, Resinous
Transparency:
Transparent
Comment:
Vitreaous on cleavages, resinous on fractures
Colour:
Light to medium Brown
Streak:
Light brown
Hardness:
Cleavage:
Perfect
Parallel to {0001}
Comment:
Cleavage plates are flat and highly lustrous, and it is this quality and appearance of the cleavage that immediately distinguishes nelenite from the other members of the friedelite group, which have cleavage fragments with slightly or grossly warped and curved surfaces.
Density:
3.46 g/cm3 (Measured)    3.45 g/cm3 (Calculated)

Optical Data of NeleniteHide

Type:
Uniaxial (-)
RI values:
nω = 1.718 nε = 1.700
Max Birefringence:
δ = 0.018
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Pleochroism:
Visible
Comments:
with e = colourless and w = light brown.

Chemical Properties of NeleniteHide

Formula:
(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]
IMA Formula:
Mn2+16As3+3Si12O36(OH)17
Common Impurities:
Zn,Mg,Ca,H2O

Crystallography of NeleniteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 23.24 Å, b = 13.41 Å, c = 7.38 Å
β = 105.21°
Ratio:
a:b:c = 1.733 : 1 : 0.55
Unit Cell V:
2,219.40 ų (Calculated from Unit Cell)

Type Occurrence of NeleniteHide

Synonyms of NeleniteHide

Other Language Names for NeleniteHide

German:Nelenit
Spanish:Nelenita

Relationship of Nelenite to other SpeciesHide

Other Members of this group:
FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig.
SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1

Common AssociatesHide

Associated Minerals Based on Photo Data:
Calcite8 photos of Nelenite associated with Calcite on mindat.org.
Manganocummingtonite4 photos of Nelenite associated with Manganocummingtonite on mindat.org.
Quartz2 photos of Nelenite associated with Quartz on mindat.org.
Tirodite2 photos of Nelenite associated with Tirodite on mindat.org.
Franklinite1 photo of Nelenite associated with Franklinite on mindat.org.
Hematite1 photo of Nelenite associated with Hematite on mindat.org.
Rhodonite1 photo of Nelenite associated with Rhodonite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.EE.05BementiteMn7Si6O15(OH)8Mon.
9.EE.10BrokenhilliteMn8Si6O15(OH)10Hex. 6mm : P63mc
9.EE.10Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
9.EE.10Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig.
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
9.EE.15SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
9.EE.20Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteNa2Fe3Si8O20(OH)2 · 4H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O Mon. 2/m : B2/m
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2OOrth.
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2OOrth.
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.EE.25Kalifersite(K,Na)5Fe3+7Si20O50(OH)6 · 12H2OTric.
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric.
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.30TungusiteCa4Fe2Si6O15(OH)6
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig.
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
9.EE.40NatrosiliteNa2Si2O5Mon.
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2OMon. 2/m : P21/b
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2OOrth.
9.EE.55RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2OTrig.
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
9.EE.70ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16Hex.
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4H2OTric. 1 : P1
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2·3H2OTric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide

72.4.1b.1FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
72.4.1b.2Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.7.1SuzukiiteBaVSi2O7Orth.
17.7.2FranciscaniteMn2+6(V5+,☐)2(SiO4)2(O,OH)6Hex.
17.7.3Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)
17.7.4Ardennite-(As)Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m)
17.7.5MedaiteMn2+6V5+Si5O18(OH)Mon.
17.7.6JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2Tric.
17.7.7TiragalloiteMn2+4As5+Si3O12(OH)Mon. 2/m
17.7.8DixeniteCuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6Trig.
17.7.9AsbecasiteCa3(Ti,Sn4+)Be2(AsO3)6(SiO4)2Trig. 3m : P3c1
17.7.10McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21Trig. 3m (3 2/m)
17.7.11KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16Orth. 2 2 2 : C2 2 21
17.7.12SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
17.7.14KoliciteMn2+7Zn4(AsO4)2(SiO4)2(OH)8Orth. mmm (2/m 2/m 2/m) : Cmca
17.7.15YeatmaniteZn6Mn2+9Sb5+2(SiO4)4O12Tric.
17.7.16WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]Tric. 1 : P1
17.7.17Katoptrite(Mn2+,Mg)13(Al,Fe3+)4Sb5+2(SiO4)2O20Mon. 2/m : B2/m
17.7.18ParweliteMn10Sb2As2Si2O24Mon. m : Bb
17.7.19LångbaniteMn2+4Mn3+9Sb5+O16(SiO4)2Trig. 3m : P3m1
17.7.20ChapmaniteFe3+2Sb3+(Si2O5)O3(OH)Mon. m : Bm
17.7.21Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)Trig. 3m : R3m

Fluorescence of NeleniteHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for NeleniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn, P.J., et al (1984): Canadian Mineralogist: 22: 259-263.
Dunn, P.J. and Peacor, D.R. (1984): Mineralogical Magazine: 48: 271-275.
American Mineralogist (1985): 70: 874-875.
Dunn, P.J. (1995): Franklin and Sterling Hill New Jersey: the world's most magnificent mineral deposits, Part 4: 480-481.

Internet Links for NeleniteHide

Localities for NeleniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Inner Mongolia Autonomous Region
    • Ulanhad League (Chifeng Prefecture)
      • Hexigten Banner (Keshiketeng Co.)
http://rruff.info/Nelenite
Romania
 
  • Suceava Co.
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
http://minerals-of-the-carpathians.eu
USA (TL)
 
  • New Jersey
    • Sussex Co.
      • Franklin mining district
        • Franklin
          • Franklin Mine
Dunn, P.J., et al: Canadian Mineralogist:22:259-263 (1984); Dunn, P.J. and Peacor, D.R.: Mineralogical Magazine:48:271-275 (1984); Dunn(1995):Pt4:480-481.
  • Virginia
    • Montgomery Co.
Minerals of Virginia 1990 by R. V. Dietrich
Mineral and/or Locality  
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